Visual and auditory event-related potentials in sporadic amyotrophic lateral sclerosis
| Autor: | M.R. Piras, Isidoro Aiello, M.A. Solinas, Kai Stephan Paulus, Giuliana Solinas, G.F. Sau, I. Magnano |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Adult
Male medicine.medical_specialty genetic structures Auditory event Audiology Cognition Physiology (medical) medicine Humans Amyotrophic lateral sclerosis Motor skill Aged medicine.diagnostic_test Memoria Amyotrophic Lateral Sclerosis Neuropsychology Brain Neuropsychological test Middle Aged medicine.disease Executive functions Event-Related Potentials P300 Sensory Systems Neurology Evoked Potentials Auditory Evoked Potentials Visual Female Neurology (clinical) Psychology Neuroscience |
| Zdroj: | Clinical Neurophysiology. 113:853-861 |
| ISSN: | 1388-2457 |
| DOI: | 10.1016/s1388-2457(02)00082-2 |
| Popis: | To investigate the relationship between amyotrophic lateral sclerosis (ALS) and cognitive function by means of oddball event-related potentials (ERPs) and to determine the usefulness of this methodology in the cognitive status assessment of physically disabled patients.Visual and auditory oddball ERPs were recorded in 16 consecutive sporadic ALS patients. A comprehensive battery of neuropsychological (NP) tests assessed intelligence, executive functions, attention, memory, word fluency, visuo-motor and visual-constructive skills.All patients performed visual and auditory ERPs and 75% of cases showed abnormal N200 and/or P300 waves. Ten patients (62.5%) carried out the entire psychometric evaluation with significant impairment on tests of executive function and attention. A significant correlation between delayed visual (P0.04) and auditory (P0.04) P300 latency and impaired NP tests was found.In agreement with literature data, our findings confirm the hypothesis of cognitive impairment in ALS patients especially on attention and executive functions suggesting a more extensive degeneration beyond the motor areas. ALS causes severe physical disabilities and such a condition may interfere with NP testing. Thus, the P300 seems to be a useful tool for the assessment of cognition and attention when severe physical deficits are present. |
| Databáze: | OpenAIRE |
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